SIST EN 771-3:2011+A1:2015
(Main)Specification for masonry units - Part 3: Aggregate concrete masonry units (Dense and lightweight aggregates)
Specification for masonry units - Part 3: Aggregate concrete masonry units (Dense and lightweight aggregates)
This European Standard specifies the characteristics and performance requirements of aggregate concrete masonry units made from dense and lightweight aggregates or a combination of both for which the main intended uses are common, facing or exposed masonry in load bearing or non-load bearing building and civil engineering applications. The units are suitable for all forms of walling, including single leaf, external leaf to chimneys, cavity wall, partitions, retaining, and basement. They can provide fire protection, thermal insulation, sound insulation and sound absorption.
This European Standard includes aggregate concrete masonry units of an overall non-rectangular parallelepiped shape, !specially" shaped and accessory units.
It defines the performance related to e.g. strength, density, dimensional accuracy, and provides for the assessment and verification of constancy of performance (AVCP) of the product to this European Standard. The marking requirement for products covered by this European Standard is included.
This European Standard does not specify standard sizes for aggregate concrete masonry units, nor standard work dimensions and angles of specially shaped aggregate concrete masonry units. It does not cover storey height panels, chimney flue linings nor units intended for use as a damp proof course. It does not cover units with an incorporated thermal insulation material bonded to the faces of the unit susceptible to be exposed to fire.
Festlegungen für Mauersteine - Teil 3: Mauersteine aus Beton (mit dichten und porigen Zuschlägen)
Spécifications pour éléments de maçonnerie - Partie 3: Éléments de maçonnerie en béton de granulats (granulats courants et légers)
Specifikacija za zidake - 3. del: Betonski zidaki (kompaktni in lahki agregati)
Ta evropski standard določa značilnosti in zahteve za zmogljivost betonskih zidakov, narejenih iz kompaktnih in lahkih agregatov ali kombinacije obojega, ki so predvideni predvsem za uporabo pri splošni, fasadni in izpostavljeni zidavi pri nosilnih ali nenosilnih visokih ali nizkih gradnjah. Zidaki so primerni za vse oblike sten, vključno z enojnim slojem in zunanjim slojem pri dimnikih, votlih zidovih, predelkih, opornih zidovih in kleteh. Zagotavljajo lahko zaščito pred požarom, toplotno izolacijo, zvočno izolacijo in zvočno absorpcijo.
Ta evropski standard vključuje betonske zidake nepravokotnih paralelepipednih oblik, zidake »posebnih« oblik in pomožne zidake.
Opredeljuje zmogljivost v zvezi z npr. močjo, gostoto in dimenzijsko natančnostjo ter omogoča ocenjevanje in preverjanje nespremenljivosti zmogljivosti (AVCP) proizvodov v skladu s tem evropskim standardom. Vključena je zahteva za označevanje proizvodov, ki jih zajema ta evropski standard.
Ta evropski standard ne določa standardnih velikosti za betonske zidake niti ne določa standardnih delovnih dimenzij in kotov betonskih zidakov posebnih oblik. Ne zajema panelov etažne višine, oblog za dimne cevi za dimnike ali zidakov, ki se uporabljajo kot izolacijska zaščita pred vlago. Ne zajema zidakov z vgrajenim materialom za toplotno izolacijo, vezanim na stranice zidaka, ki so lahko izpostavljene ognju.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 771-3:2011+A1:2015
01-oktober-2015
1DGRPHãþD
SIST EN 771-3:2011
Specifikacija za zidake - 3. del: Betonski zidaki (kompaktni in lahki agregati)
Specification for masonry units - Part 3: Aggregate concrete masonry units (Dense and
lightweight aggregates)
Festlegungen für Mauersteine - Teil 3: Mauersteine aus Beton (mit dichten und porigen
Zuschlägen)
Spécifications pour éléments de maçonnerie - Partie 3: Éléments de maçonnerie en
béton de granulats (granulats courants et légers)
Ta slovenski standard je istoveten z: EN 771-3:2011+A1:2015
ICS:
91.100.30 Beton in betonski izdelki Concrete and concrete
products
SIST EN 771-3:2011+A1:2015 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 771-3:2011+A1:2015
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SIST EN 771-3:2011+A1:2015
EUROPEAN STANDARD
EN 771-3:2011+A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2015
ICS 91.100.30 Supersedes EN 771-3:2011
English Version
Specification for masonry units - Part 3: Aggregate concrete
masonry units (Dense and lightweight aggregates)
Spécifications pour éléments de maçonnerie - Partie 3: Festlegungen für Mauersteine - Teil 3: Mauersteine aus
Éléments de maçonnerie en béton de granulats (granulats Beton (mit dichten und porigen Zuschlägen)
courants et légers)
This European Standard was approved by CEN on 10 March 2011 and includes Amendment 1 approved by CEN on 11 January 2015.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 771-3:2011+A1:2015 E
worldwide for CEN national Members.
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SIST EN 771-3:2011+A1:2015
EN 771-3:2011+A1:2015 (E)
Contents Page
European foreword .4
1 Scope .5
2 Normative references .5
3 Terms, definitions and symbols .6
3.1 Terms and definitions .6
3.2 Symbols .8
4 Materials .8
5 Requirements for aggregate concrete masonry units .9
5.1 General .9
5.2 Dimensions and tolerances .9
5.2.1 Dimensions .9
5.2.2 Dimensional tolerances . 10
5.3 Configuration and appearance . 10
5.3.1 Configuration . 10
5.3.2 Appearance . 11
5.4 Density . 11
5.4.1 Gross dry density of the units . 11
5.4.2 Net dry density of the concrete . 12
5.4.3 Tolerances . 12
5.5 Mechanical strength . 12
5.5.1 Compressive strength . 12
5.5.2 Bending tensile strength . 13
5.6 Thermal properties . 13
5.7 Durability . 13
5.8 Water absorption by capillarity . 14
5.9 Moisture movement . 14
5.10 Water vapour permeability . 14
5.11 Reaction to fire . 14
5.12 Shear bond strength . 14
5.12.1 General . 14
5.12.2 Declaration based on fixed values . 15
5.12.3 Declaration based on tests . 15
5.13 Flexural bond strength . 15
5.14 Dangerous substances . 15
6 Description, designation and classification of aggregate concrete masonry units . 15
6.1 Description and designation of units . 15
6.2 Classification . 16
7 Marking . 16
8 !Assessment and verification of constancy of performance (AVCP)" . 16
8.1 General . 16
8.2 !Product type determination" . 17
8.3 Factory production control . 18
8.3.1 General . 18
8.3.2 Testing and measuring equipment . 18
8.3.3 Production equipment . 18
8.3.4 Raw materials . 18
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SIST EN 771-3:2011+A1:2015
EN 771-3:2011+A1:2015 (E)
8.3.5 Production process . 19
8.3.6 Finished product testing . 19
8.3.7 Statistical techniques . 19
8.3.8 Marking and stock control of products . 19
8.3.9 Traceability . 19
8.3.10 Nonconforming products . 19
Annex A (normative) !Sampling for determination of product type and for independent testing
of consignments" . 20
A.1 General . 20
A.2 Sampling procedure . 20
A.2.1 General . 20
A.2.2 Random sampling . 20
A.2.3 Representative sampling . 20
A.2.4 Dividing the sample . 21
A.2.5 Number of units required for testing . 21
A.3 Place and dates of inspection and testing . 22
Annex B (normative) !Compliance criteria for product type determination and for independent
testing of consignments" . 23
B.1 Dimensions and tolerances (see 5.2) . 23
B.2 Configuration and appearance (see 5.3) . 23
B.3 Density (see 5.4) . 23
B.4 Mechanical strength (see 5.5) . 23
B.4.1 Characteristic strength . 23
B.4.2 Mean strength . 23
B.5 Moisture movement and water absorption by capillarity (see 5.9 and 5.8) . 23
Annex C (informative) Examples of different shapes of aggregate concrete masonry units . 27
Annex D (informative) Guidance for test frequencies for designing a FPC system to demonstrate
conformity of finished products with the requirements of the standard and the
declaration of the manufacturer . 28
Annex ZA (informative) !Clauses of this European Standard addressing the provisions of the
EU Construction Products Directive" . 30
ZA.1 Scope and relevant characteristics . 30
ZA.2 Procedure for AVCP of aggregate concrete masonry units . 32
ZA.2.1 System(s) of AVCP . 32
ZA.2.2 Declaration of performance (DoP) . 33
ZA.3 CE marking and labelling. 38
Bibliography . 41
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SIST EN 771-3:2011+A1:2015
EN 771-3:2011+A1:2015 (E)
European foreword
This document (EN 771-3:2011+A1:2015) has been prepared by Technical Committee CEN/TC 125
“Masonry”, the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by February 2016, and conflicting national standards shall be withdrawn
at the latest by May 2017.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes !EN 771-3:2011".
This document includes Amendment 1 approved by CEN on 2015-01-11.
The start and finish of text introduced or altered by amendment is indicated in the text by tags !".
!This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports basic requirements for construction works of the EU
Construction Products Regulation (Regulation (EU) No 305/2011).
For relationship with EU Regulation/Directives, see informative Annex ZA, which is an integral part of this
document."
This European Standard also takes into account the general rules for reinforced and unreinforced masonry in
Eurocode 6.
EN 771, Specification for masonry units consists of:
— Part 1: Clay masonry units
— Part 2: Calcium silicate masonry units
— Part 3: Aggregate concrete masonry units (Dense and light weight aggregates)
— Part 4: Autoclaved aerated concrete masonry units
— Part 5: Manufactured stone masonry units
— Part 6: Natural stone masonry units
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
4
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SIST EN 771-3:2011+A1:2015
EN 771-3:2011+A1:2015 (E)
1 Scope
This European Standard specifies the characteristics and performance requirements of aggregate concrete
masonry units made from dense and lightweight aggregates or a combination of both for which the main
intended uses are common, facing or exposed masonry in load bearing or non-load bearing building and civil
engineering applications. The units are suitable for all forms of walling, including single leaf, external leaf to
chimneys, cavity wall, partitions, retaining, and basement. They can provide fire protection, thermal insulation,
sound insulation and sound absorption.
This European Standard includes aggregate concrete masonry units of an overall non-rectangular
parallelepiped shape, !specially" shaped and accessory units.
!It defines the performance related to e.g. strength, density, dimensional accuracy, and provides for the
assessment and verification of constancy of performance (AVCP) of the product to this European Standard.
The marking requirement for products covered by this European Standard is included."
This European Standard does not specify standard sizes for aggregate concrete masonry units, nor standard
work dimensions and angles of specially shaped aggregate concrete masonry units. It does not cover storey
height panels, chimney flue linings nor units intended for use as a damp proof course. It does not cover units
with an incorporated thermal insulation material bonded to the faces of the unit susceptible to be exposed to
fire.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 772-1:2011, Methods of test for masonry units ― Part 1: Determination of compressive strength
EN 772-2, Methods of test for masonry units ― Part 2: Determination of percentage area of voids in
aggregate concrete masonry units (by paper indentation)
EN 772-6, Methods of test for masonry units ― Part 6: Determination of bending tensile strength of aggregate
concrete masonry units
EN 772-11, Methods of test for masonry units ― Part 11: Determination of water absorption of aggregate
concrete, autoclaved aerated concrete, manufactured stone and natural stone masonry units due to capillary
action and the initial rate of water absorption of clay masonry units
EN 772-13, Methods of test for masonry units ― Part 13: Determination of net and gross dry density of
masonry units (except for natural stone)
EN 772-14, Methods of test for masonry units ― Part 14: Determination of moisture movement of aggregate
concrete and manufactured stone masonry units
EN 772-16:2011, Methods of test for masonry units ― Part 16: Determination of dimensions
EN 772-20, Methods of test for masonry units ― Part 20: Determination of flatness of faces of aggregate
concrete, manufactured stone and natural stone masonry units
EN 1052-2, Methods of test for masonry ― Part 2: Determination of flexural strength
EN 1052-3, Methods of test for masonry ― Part 3: Determination of initial shear strength
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SIST EN 771-3:2011+A1:2015
EN 771-3:2011+A1:2015 (E)
EN 1745, Masonry and masonry products ― Methods for determining thermal properties
EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification using
data from reaction to fire tests
EN ISO 12572, Hygrothermal performance of building materials and products ― Determination of water
vapour transmission properties (ISO 12572:2001)
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
masonry unit
preformed component intended for use in masonry construction
3.1.2
common masonry unit
masonry unit normally intended for use with no faces left visible
3.1.3
facing masonry unit
masonry unit intended for use with one or more faces left visible and which may or may not be exposed to
external climatic conditions
3.1.4
exposed masonry unit
facing masonry unit exposed to external climatic conditions without render or other equivalent protection
3.1.5
aggregate concrete masonry unit
masonry unit manufactured from, cementitious binder, aggregates and water and which may contain
admixtures and additions and colouring pigments and other materials incorporated or applied during or
subsequent to unit manufacture
3.1.6
co-ordinating size
size of a co-ordinating space allocated to a masonry unit including allowances for joints
3.1.7
work size
size of a unit specified for its manufacture, to which the actual size conforms within permissible deviations
3.1.8
actual size
size of a unit as measured
3.1.9
regular shaped masonry unit
masonry unit with an overall rectangular parallelepiped shape
NOTE Examples of different shapes of concrete masonry units are shown in Annex C.
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SIST EN 771-3:2011+A1:2015
EN 771-3:2011+A1:2015 (E)
3.1.10
specially shaped masonry unit
masonry unit which is not a rectangular parallelepiped
3.1.11
accessory unit
unit which is shaped to provide a particular function, e.g. to complete the geometry of the masonry
3.1.12
interlocking features
shaped matched projections and indentations on masonry units
EXAMPLE Tongue and groove systems.
3.1.13
hole
formed void which may or may not pass completely through a masonry unit
3.1.14
frog
depression formed in one or both of the bed faces of a unit, the total volume of all such depressions which
does not exceed a certain limit of the overall volume of the unit, i.e. length × width × height
3.1.15
recess
depression or indentation in one or more surfaces of a masonry unit
EXAMPLE Mortar pocket, rendering keyway, grooves to provide a discontinuity in the mortar joint, grip hole.
3.1.16
shell
peripheral solid material between the hole(s) and the face or the header of a unit
3.1.17
web
solid material between the formed voids in a masonry unit
3.1.18
declared value
value that a manufacturer is confident of achieving, bearing in mind the precision of the test and the variability
of the manufacturing process
3.1.19
Category I masonry units
units with a declared compressive strength with a probability of failure to reach it not exceeding 5 %
NOTE This may be determined via the mean or characteristic value.
3.1.20
Category II masonry units
units not intended to comply with the level of confidence of Category I units
3.1.21
normalized compressive strength of masonry units
compressive strength of masonry units converted to the air dry compressive strength of an equivalent 100 mm
wide × 100 mm high masonry unit
NOTE See the procedure given in EN 772-1.
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SIST EN 771-3:2011+A1:2015
EN 771-3:2011+A1:2015 (E)
3.1.22
mean compressive strength of masonry units
arithmetic mean of the compressive strengths of masonry units
3.1.23
characteristic compressive strength of masonry units
compressive strength corresponding to a 5 % lower fractile of the compressive strength of masonry units
3.1.24
combined thickness of webs and shells
sum of the thicknesses of the shells and webs from one face or header of a masonry unit to the opposite face
or header respectively along whichever path, via the formed voids, gives the smallest value, expressed as a
percentage of the unit width or length respectively
3.1.25
product group
products from one manufacturer having common values for one or more characteristic
3.1.26
consignment
shipment from the supplier
3.1.27
grip hole
hole in a masonry unit to enable it to be more readily grasped and lifted by hand or machine
3.2 Symbols
l
length, in mm
l length of the diagonal, in mm
d
w width, in mm
h height, in mm
2
f
normalized compressive strength, in N/mm
b
2
f
characteristic compressive strength, in N/mm
c
2
f
mean compressive strength, in N/mm
m
2
f
individual result compressive strength, in N/mm
bi
λ thermal conductivity of a masonry unit in a dry state at an average temperature of 10 °C
10,dry,unit
4 Materials
The specifications of the materials to be used shall be included in the production control documentation (see
8.3). If appropriate European Standards are available, they shall be used except that aggregates need not
comply with grading requirements. If not available, the manufacturer shall specify the materials and have data
on their suitability.
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SIST EN 771-3:2011+A1:2015
EN 771-3:2011+A1:2015 (E)
5 Requirements for aggregate concrete masonry units
5.1 General
The requirements and properties specified in this European Standard shall be defined in terms of the test
methods and other procedures referred to in this European Standard.
NOTE A declared value may be chosen from the classification system, if any, of the place of manufacture/use of the
units.
It should be noted that the standard test methods are not always applicable to specially shaped and accessory
units as defined in 3.1.10 and 3.1.11.
The conformity criteria given in the following subclauses !relate to product type determination" (see 8.2)
and, when relevant, to consignment testing (see Annex A). For the compressive strength of Category I units
use a 50 % fractile (p = 0,50) for mean values or 5 % fractile (p = 0,05) for characteristic values and a
confidence level of 95 %.
For production evaluation, the manufacturer shall define the conformity criteria in the factory production
control documentation (see 8.3).
5.2 Dimensions and tolerances
5.2.1 Dimensions
The manufacturer shall declare the dimensions of the aggregate concrete masonry units in mm for length,
width and height, in that order (see Figure 1). They shall be given in terms of work size.
NOTE 1 In addition the co-ordinating size may be given.
Key
1 Length 3 Height 5 Face
2 Width 4 Bed 6 Header
NOTE 2 This relates to the normal use of the masonry unit in the wall.
Figure 1 — Dimensions and surfaces
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SIST EN 771-3:2011+A1:2015
EN 771-3:2011+A1:2015 (E)
5.2.2 Dimensional tolerances
5.2.2.1 Tolerances
The tolerances on declared work sizes of individual regular shaped units shall conform to Table 1. Closer
tolerances may be declared for one or more dimensions. The manufacturer shall declare the tolerance
category of the units.
Table 1 — Limit deviations in millimetres
Tolerance category D1 D2 D3 D4
Length +3 +1 +1 +1
−5 −3 −3 −3
Width +3 +1 +1 +1
−5 −3 −3 −3
Height +3 ± 2 ± 1,5 ± 1,0
−5
Tolerances for non-regular shaped and accessory units shall be as given in Table 1 or as declared by the
manufacturer.
These tolerances shall not apply to the dimensions between the surfaces of units which are manufactured to
be non planar.
If sampled in accordance with A.2 and tested in accordance with EN 772-16:2011 (method a)), the results
evaluated in accordance with B.1 shall conform to the declared tolerance category.
5.2.2.2 Flatness of bed faces
When aggregate concrete masonry units are declared as tolerance category D4 for use with thin layer mortar,
the manufacturer shall also declare the maximum deviation from flatness of the bed faces.
If sampled in accordance with A.2 and tested in accordance with EN 772-20, the deviation from flatness of the
bed faces shall not exceed the declared value.
5.2.2.3 Plane parallelism of bed faces
When aggregate concrete masonry units are declared as tolerance category D4 for use with thin layer mortar,
the manufacturer shall also declare the maximum deviation from plane parallelism of the bed faces.
If sampled in accordance with A.2 and tested in accordance with EN 772-16:2011 (method d)), the deviation
from plane parallelism of the bed faces shall not exceed the declared value.
5.3 Configuration and appearance
5.3.1 Configuration
When relevant to the uses for which aggregate
...
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